TdxCustomMemData.RecIdField Property

Returns a pointer to the ‘RecId’ field of the ExpressMemData component.

Declaration

property RecIdField: TField read;

Property Value

Type
TField

Remarks

The ‘RecId’ field is invisible and is created automatically during the creation of the ExpressMemData component. The RecIdField is a unique field.

Note

If you do not have a unique field and wish to use the grouping capabilities of the ExpressQuantumGrid™, use the ‘RecId’ field as a KeyField property of a lookup grid column.

Example

// Set a unique field after the insert operation
procedure TForm1.dxMemData1AfterInsert(DataSet: TDataSet);
begin
  DataSet.FindField('id').AsInteger := DataSet.FindField('recid').AsInteger;
end;

Note

Use the RecIdField.FieldName property to modify the default name of the ‘RecId’ field to avoid conflicts when loading data or fields from another dataset via the CreateFieldsFromDataSet or AddFieldsFromDataSet method call.